// ==UserScript==
// @name         FMHY Base64 Auto Decoder
// @version      2.4
// @author       Rust1667
// @description  Decode base64-encoded links in some pastebins and make URLs clickable
// @match        *://rentry.co/*
// @match        *://rentry.org/*
// @match        *://pastes.fmhy.net/*
// @match        *://bin.disroot.org/?*#*
// @match        *://privatebin.net/?*#*
// @match        *://textbin.xyz/?*#*
// @match        *://bin.idrix.fr/?*#*
// @match        *://privatebin.rinuploads.org/?*#*
// @match        *://pastebin.com/*
// @grant        none
// @icon         https://t1.gstatic.com/faviconV2?client=SOCIAL&type=FAVICON&fallback_opts=TYPE,SIZE,URL&url=http://fmhy.net&size=64
// @namespace https://greasyfork.org/users/980489
// ==/UserScript==
(function() {
'use strict';
// Regular expression to match base64-encoded strings
const base64Regex = /^[A-Za-z0-9+/]+={0,2}$/;
// Function to decode base64 string
function decodeBase64(encodedString) {
return atob(encodedString);
}
// Function to check if a string is a URL
function isURL(str) {
const pattern = /^(https?|ftp):\/\/[^\s/$.?#].[^\s]*$/i;
return pattern.test(str);
}
// Different script for different pastebins
var currentUrl = window.location.href;
const rentryOrSnowbinRegex =          /^(https?:\/\/(?:rentry\.co|rentry\.org|pastes\.fmhy\.net)\/[\w\W]+)/;
const FMHYmainBase64PageRegex =       /^https:\/\/rentry\.(?:co|org)\/fmhybase64(?:#.*)?/i;
const fmhyBase64RawRentryPageRegex =  /^https:\/\/rentry\.(co|org)\/FMHYBase64\/raw$/i;
const privatebinDomainsRegex =        /^(https?:\/\/(?:bin\.disroot\.org|privatebin\.net|textbin\.xyz|bin\.idrix\.fr|privatebin\.rinuploads\.org)\/[\w\W]+)/;
const pastebinComRegex =              /^https:\/\/pastebin\.com\/.*/;
// PASTEBIN.COM
if (pastebinComRegex.test(currentUrl)) {
let elements = document.querySelectorAll('.de1');
elements.forEach(function(element) {
let text = element.textContent.trim();
if (text.startsWith('aHR0')) {
let decodedText = decodeBase64(text);
let url = new URL(decodedText);
// Get the color of the original text
let originalColor = window.getComputedStyle(element).color;
// Create a clickable link
let link = document.createElement('a');
link.href = url.href;
link.textContent = url.href;
link.style.color = originalColor; // Apply the original color
// Replace the original text with the clickable link
element.textContent = '';
element.appendChild(link);
}
});
//RENTRY OR PASTES.FMHY
} else if (rentryOrSnowbinRegex.test(currentUrl) && !fmhyBase64RawRentryPageRegex.test(currentUrl)) {
// Select appropriate tags based on the URL matching
var elementsToCheck = FMHYmainBase64PageRegex.test(currentUrl) ? document.querySelectorAll('code') : document.querySelectorAll('code, p');
// Loop through each selected element
elementsToCheck.forEach(function(element) {
// Get the content of the element
var content = element.textContent.trim();
// Check if the content matches the base64 regex
if (base64Regex.test(content)) {
// Decode the base64-encoded string
var decodedString = decodeBase64(content).trim();
// If the decoded string has URLs, decode it and linkify when possible
if (isURL(decodedString) || (decodedString.includes('http') && decodedString.includes('\n'))) {
// One line
if (!decodedString.includes('\n')) {
var link = document.createElement('a');
link.href = decodedString;
link.textContent = decodedString;
link.target = '_self'; // Open link in the same tab
element.textContent = ''; // Clear the content of the element
element.appendChild(link); // Append the link to the element
}
//Multiple lines
else {
const lines = decodedString.split("\n");
const links = lines.map(line => isURL(line.trim()) ? "<a href='" + line.trim() + "'>" + line.trim() + "</a>" : line.trim());
element.innerHTML = links.join("<br>");
}
}
}
});
//FMHY-BASE64 RAW RENTRY PAGE
} else if (fmhyBase64RawRentryPageRegex.test(currentUrl)) {
// Find all lines starting with "* `"
const lines = document.body.innerText.split('\n');
for (let i = 0; i < lines.length; i++) {
const line = lines[i];
if (line.includes('`')) {
const startIndex = line.indexOf('`');
const endIndex = line.lastIndexOf('`');
const encodedText = line.substring(startIndex + 1, endIndex).trim();
const decodedText = atob(encodedText);
const newLine = line.substring(0, startIndex) + decodedText + line.substring(endIndex + 1);
lines[i] = newLine;
}
}
// Update the page content with decoded lines
document.body.innerText = lines.join('\n');
// PRIVATEBIN
} else if (privatebinDomainsRegex.test(currentUrl)) {
// Wait for the decryption process to finish
function waitForDecryption() {
const prettyPrintElement = document.getElementById('prettyprint');
if (prettyPrintElement && prettyPrintElement.textContent.trim() !== '') {
let decryptedText = prettyPrintElement.innerHTML.trim();
const lines = decryptedText.split('\n');
// Flag to track if any modifications were made
let modified = false;
// Iterate through each line
lines.forEach(line => {
// Check if the line contains a potential Base64 encoded string
if (base64Regex.test(line)) {
// Attempt to decode the potential Base64 encoded string
try {
const decodedText = decodeBase64(line);
// Trim the decoded text before checking if it's a URL
const trimmedText = decodedText.trim();
// If trimmed decoded string is a URL, make it clickable
if (isURL(trimmedText)) {
// Replace the line with the decoded and linked text
decryptedText = decryptedText.replace(line, '<a href="' + trimmedText + '">' + trimmedText + '</a>');
modified = true;
}
} catch (error) {
// If an error occurs during decoding, show it in an alert message
//alert("Unable to decode the string: " + line);
}
} else if (line.startsWith('`') && line.endsWith('`')) {
// Check if the line starts and ends with backticks
let textInsideBackticks = line.slice(1, -1);
// Check if textInsideBackticks is a Base64 encoded string
if (base64Regex.test(textInsideBackticks)) {
// Attempt to decode the text inside backticks
try {
const decodedText = decodeBase64(textInsideBackticks);
// Trim the decoded text before checking if it's a URL
const trimmedText = decodedText.trim();
// If trimmed decoded string is a URL, make it clickable
if (isURL(trimmedText)) {
// Replace the line with the decoded and linked text
decryptedText = decryptedText.replace(line, '<a href="' + trimmedText + '">' + trimmedText + '</a>');
modified = true;
}
} catch (error) {
// If an error occurs during decoding, show it in an alert message
//alert("Unable to decode the string: " + textInsideBackticks);
}
}
}
});
// If modifications were made, show modified text in the page
if (modified) {
prettyPrintElement.innerHTML = decryptedText;
}
} else {
setTimeout(waitForDecryption, 500); // Check again in 500ms
}
}
// Start waiting for decryption
waitForDecryption();
}
})();